NOAA OPC 500 mb Forecast Chart
A blocking ridge has re-established itself over the eastern North Pacific, effectively shunting storm tracks from the western North Pacific northward towards the eastern Bering Sea. At the same time, a large semi stationary upper-level and surface level low prevail over the northwestern North Pacific which continues to depress the prevailing jet and storm tracks south of 40 N over the western North Pacific.
NOAA OPC 48 hour Surface Forecast
The eastern ridge is expected to gradually weaken and drift southeastward later this week.
